Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . Reddit’s Ads Data Science team is looking for a Senior Staff Data Scientist to lead the scientific strategy behind Reddit’s ads measurement and signal systems. This role sits at the center of how Reddit proves advertiser value, improves signal quality, builds privacy-aware measurement systems, and connects ads exposure to real advertiser outcomes. As a Senior Staff Data Scientist for Ads Measurement, you will be the principal architect of our technical vision and the driving force behind the next generation of our measurement ecosystem. In a landscape rapidly shifting due to privacy regulations, browser changes, and evolving platform dynamics, you will spearhead innovation across experimental design (incrementality/lift), identity, signals, and privacy-safe 1P/3P measurement. This is a high-visibility, high-impact role requiring a rare blend of deep experimentation & causal inference expertise, strategic foresight, and the ability to influence cross-functional executives and industry standards. You will not just adapt to the changing ad-tech environment, you will redefine how we measure value. Responsibilities Technical Vision & Strategy: Define the long-term data science vision & strategy across ads measurement, signal quality, identity, attribution, and privacy. Establish how Reddit should evaluate advertiser value, measurement quality, and signal utility across first-party and third-party products. Set the Cross-Pillar Measurement Science Strategy: Define the long-term data science strategy across a
Jobs in Canada
Lead Platform Engineer in Toronto
143 active opportunities · Updated October 2026
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15 jobs
Explore current lead platform engineer jobs in Toronto. Filter by work mode, employment type, experience, department, date posted and distance.
At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Sitting within the broader Safety & Customer Care team, Lyft's Customer Care Operations organization manages over 1.7 million monthly customer interactions and serves as the company's primary direct touchpoint with riders, drivers, and businesses — spanning frontline support across multiple customer segments, a global BPO workforce, and the central functions that enable them to operate at scale. The Director of Business Planning & Central Operations is a newly created role at the center of how Customer Care runs and grows. This leader will ensure the org is resourced and positioned for the future, and will own the functions that keep Customer Care financially disciplined and execution-ready. Reporting to the Senior Director of Customer Care Operations, they will lead five functions: Planning & Forecasting, Workforce Management, Readiness & Integration, Vendor Management, and Support Excellence. What You'll Do Business Planning & Strategy Partner with the Senior Director to drive H1 and H2 planning — translating annual objectives into operational plans, investment decisions, and resource models. Lead the investment brief process: sizing opportunities, articulating trade-offs, and building the business cases that secure resourcing for strategic priorities. Drive capacity planning, scenario modeling, and long-range forecasting to ensure the internal and external workforce scales efficiently alongside platform growth and AI adoption. Define and operationalize OKRs across the portfolio, then build the rhythms and infrastructure — scorecards, business reviews, and performance dashboards — that hold teams accountable and give leadership clear visibility into progress and outcomes. Growth & Integrations Lead operational readiness for major product launches, external partnerships, and
From $96.4K/yr
Level Up Your Career with Zynga! At Zynga, we bring people together through the power of play. As a global leader in interactive entertainment and a proud label of Take-Two Interactive, our games have been downloaded over 6 billion times—connecting players in 175+ countries through fun, strategy, and a little friendly competition. From thrilling casino spins to epic strategy battles, mind-bending puzzles, and social word challenges, our diverse game portfolio has something for everyone. Fan-favorites and latest hits include FarmVille™, Words With Friends™, Zynga Poker™, Game of Thrones Slots Casino™, Wizard of Oz Slots™, Hit it Rich! Slots™, Wonka Slots™, Top Eleven™, Toon Blast™, Empires & Puzzles™, Merge Dragons!™, CSR Racing™, Harry Potter: Puzzles & Spells™, Match Factory™, and Color Block Jam™—plus many more! Founded in 2007 and headquartered in California, our teams span North America, Europe, and Asia, working together to craft unforgettable gaming experiences. Whether you're spinning, strategizing, matching, or competing, Zynga is where fun meets innovation—and where you can take your career to the next level. Join us and be part of the play! Position Overview We are seeking a Senior Product Manager with experience in Ad monetization or Ad Technology systems to shape, execute & distribute our Ad Technology SDK across 50+ Games at Zynga! This role specializes in key aspects of our product lifecycle, building customized ad formats for our games and delivering experiments, readouts and optimizations. This role requires a blend of product management and ad monetization experience. Ideal candidates should have experience working on monetization/payments systems and should be deeply familiar with how games balance engagement with IAA/IAP monetization. What You'll Do Lead experiments for our Advertising platform from experiment design through analysis and rollout -> fine-tuning supply and demand side features that impact how our players see ads
C$71.2K – C$89K/yr
At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. We are looking for a detail-driven Legal Billing Specialist to join our growing Legal Operations Team. In this role, you will own the day-to-day of outside counsel and vendor billing across our matter management and eBilling platforms—reviewing invoices, enforcing our Outside Counsel Guidelines and negotiated fee arrangements, and keeping our legal spend accurate, compliant, and on time. The ideal candidate is tech-savvy, numbers-oriented, and thrives under recurring billing deadlines, bringing a collaborative and transparent approach to partnering with attorneys, law firms, and Finance. This is a billing-focused role that also supports the broader Legal Operations function. Responsibilities: Prepare, review, and process outside counsel and vendor invoices; audit prebills and invoices, and flag rate errors, block-billing, math discrepancies, and billing-guideline violations before approval. Manage the day-to-day operation of the eBilling and matter management platform (Onit), including invoice intake, LEDES processing, rejections and appeals, accruals, and international / AP invoice processing. Enforce compliance with Lyft’s Outside Counsel Guidelines (OCG) and negotiated fee and alternative fee arrangements (AFAs); process write-offs, write-downs, and adjustments with clear documentation and audit trail. Manage timekeeper and billing-rate submissions and approvals; maintain accurate rate cards, matter budgets, and phase/task coding across the portfolio. Serve as the primary point of contact for billing inquiries and disputes; resolve discrepancies promptly by partnering with attorneys, law firms, and support staff. Partner closely with the Legal Operations eBilling Lead and with Finance / Accounts Payable on accruals, month- and quarter-end close, reconciliation, and payment status. Onboard outside
Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team + role We are building an elite team, applying frontier technologies to the world’s biggest financial problems. We’re looking for bold thinkers. Sharp problem-solvers. Builders who are wired to make an impact. Robinhood isn’t a place for complacency, it’s where ambitious people do the best work of their careers. We’re a high-performing, fast-moving team with ethics at the center of everything we do. Expectations are high, and so are the rewards. The Crypto Risk team 's mission is to identify, assess, and mitigate risk across our products, operations, and platforms, protecting customers and the firm as the business scales. We work to deliver an excellent end-customer experience while upholding the safety and soundness of the business, so Robinhood can keep expanding access to crypto responsibly. As Robinhood expands its operations in Canada, we are building an independent risk management function to support that growth. As our new Crypto Risk Lead , you will own the design, implementation, and ongoing operation of an independent risk management program for Robinhood's Canadian crypto business. This role is based in our Toronto, ON office, with in-person attendance expected at least 3 days per week. At Robinhood, we believe in the power of in-person work to accelerate progress, spark innovation, and strengthen community. Our office experience is intentional, energizing, and designed to fully support high-performing teams. What you’ll do Implement and own Canada's independent risk management program, adapting Robinhood's global risk framework to meet Canadian regulatory expectations, including C
From C$1.7M/yr
About the Role: As Sr Manager, Creator & Content Partnerships - Canada, you'll lead Tubi’s effort to source, grow, and manage relationships with Canadian creators. You will support the GM Tubi Canada, in expanding relationships with content partners. You will play a pivotal role in scaling and evolving our Canadian content proposition, helping to shape the broader Canadian content strategy, and contributing to the global Tubi for Creators initiative. This is a hands-on, high impact role that blends business development, partnership management, and strategic, data-led thinking. This is a hybrid role based out of our Toronto office. You must be willing to travel to our Toronto office two days/week. What You'll Do: Source, pitch, and secure partnerships with Canadian creators, working directly with creators, talent agencies and distributors/aggregators Support broader strategic content partnerships with streaming platforms, broadcasters, and other IP owners, working closely with the US-based Content Acquisitions & Partnerships team Play a key role in shaping the Tubi Canada content strategy, ensuring the offering resonates with Canadian audiences and drives viewing growth Manage ongoing relationships with creators and partners, including onboarding, marketing collaborations, & partnership growth Track and analyze partner performance to identify growth and optimization opportunities Your Background: Demonstrated knowledge of the Canadian content and streaming landscape, with established relationships across the creator ecosystem 7+ years of experience in the creator economy, digital media, streaming, or content partnerships Track record in creator acquisition and/or partner management Strong empathy and understanding for creators and a keen understanding of their needs, challenges, and business models Exceptional communication and relationship-building skills, with a demonstrable ability to work cross functionally Strong da
From $145K/yr
ROLE: CREATIVE DIRECTOR, PORTFOLIO TEAM: THE KITCHEN NORTH AMERICA LOCATION: TORONTO / CHICAGO (HYBRID) COMPANY OVERVIEW The Kitchen brings together a range of disciplines and capabilities. It’s a team of creatives, producers, data analysts and social experts working together to deliver remarkable ideas that live in a variety of mediums, from everything from social to TV. This team moves at the speed of culture. It is built to respond to trends and events as they happen, coming up with ideas that transcend social media to capture the spirit of the moment, earn media impressions, and get the country talking. Are you ready to join an award-ambitious team that's making waves in the advertising industry? Our incredible team has been recognized internationally by industry giants like Cannes, One Show and was named Campaign's Global ‘In-House Agency of The Year’, further solidifying our position as a leader in the industry. Join us and be a part of something truly special - a team that's dedicated to creating ground-breaking work and pushing limits. At The Kitchen, we're not just looking for individuals who want to be a part of the advertising industry - we're looking for trailblazers who are ready to lead the way to the next big thing! We want individuals who are passionate about producing award-winning work and have an innate drive to their craft and are eager to generate innovative ideas both within and outside of the brief. ROLE OVERVIEW As the Creative Director, Portfolio you will lead multidisciplinary creative teams across a portfolio of iconic Kraft Heinz brands, partnering with Sr. Creatives, Designers, Accounts and Strategists to develop breakthrough ideas that extend seamlessly across every consumer touchpoint-from national campaign and social content to retail experiences and the moment of purchase. Unlike a traditional Creative Director role, this position requires someone who is equally comfortable developing breakthrough brand platforms as they are tra
ROLE: CONTENT CREATOR TEAM: THE KITCHEN NORTH AMERICA LOCATION: TORONTO (HYBRID) COMPANY OVERVIEW: The Kitchen brings together a range of disciplines and capabilities. It’s a team of creatives, producers, data analysts and social experts working together to deliver remarkable ideas that live in a variety of mediums, from social to TV. This team moves at the speed of culture. It is built to respond to trends and events as they happen, coming up with ideas that transcend social media to capture the spirit of the moment, earn media impressions, and get the country talking. Are you ready to join an award-ambitious team that's making waves in the advertising industry? Our incredible team has been recognized internationally by industry giants like Cannes, One Show and was named Campaign's Global In-House Agency of The Year, further solidifying our position as a leader in the industry. Join us and be a part of something truly special, a team that's dedicated to creating ground-breaking work and pushing limits. At The Kitchen, we're not just looking for individuals who want to be a part of the advertising industry, we're looking for trailblazers who are ready to lead the way to the next big thing. We want individuals who are passionate about producing award-winning work and have an innate drive to their craft and are eager to generate innovative ideas both within and outside of the brief. ROLE OVERVIEW: In this role as Content Creator , you work alongside a team of Creatives and a Producer to plan, shoot, edit and optimize a wide range of content. From clever TikToks shot natively on device to deliciously staged food photography, you will work to create a range of still and video assets for some iconic brands. You’re an expert in social content – with a deep understanding of the platforms and what kind of content audiences expect on each. You enjoy the creative process and you’ll be part of a team that makes the kind of i
From $140K/yr
ROLE: SENIOR MEDIA DIRECTOR TEAM: MEDIA LOCATION: TORONTO (HYBRID 2X/WEEK) COMPANY OVERVIEW At Salt Media , we're on a mission to earn the world's attention. As the media division of Salt XC, we're building a different kind of agency where media, commerce, creative, data and technology work as a single connected team. Our people combine strategic thinking with AI-powered tools, automation and advanced analytics to help some of North America's most recognized brands solve complex business challenges and drive measurable growth. We move quickly, challenge convention, and believe the best ideas come from curious people who are empowered to experiment. If you're looking to do career-defining work alongside smart, ambitious teammates in an environment that's shaping the future of media, we'd love to meet you. ROLE OVERVIEW As a Senior Media Director, you’ll set the strategic direction for how media investment is planned, bought, and optimized across CPG clients in North America. Operating at the intersection of media strategy and team leadership, you’ll ensure every plan is grounded in strong channel logic, sound investment principles, and a clear line to business outcomes. You’ll own cross-channel strategy and plan alignment across your portfolio, setting the optimization roadmap and reporting rhythm that keeps campaigns performing against KPIs. You’ll lead a team of media managers and directors — training them on tools and platforms, mentoring their growth, and ensuring the team’s segmentation and audience strategies stay sharp as channels evolve. You bring a senior media point of view that Account leads and clients rely on, and a team looks up to. You move fluidly between investment strategy and hands-on problem-solving, and you know how to translate performance data into a clear learning agenda for the whole team. CORE RESPONSIBILITIES Media Planning & Buying Lead plan development and investment approach across your portfolio, ensuring every plan is gr
From $840K/yr
ROLE: RETAIL MEDIA SEARCH MANAGER TEAM: MEDIA LOCATION: TORONTO (HYBRID ONSITE) COMPANY OVERVIEW At Salt Media , we're on a mission to earn the world's attention. As the media division of Salt XC, we're building a different kind of agency where media, commerce, creative, data and technology work as a single connected team. Our people combine strategic thinking with AI-powered tools, automation and advanced analytics to help some of North America's most recognized brands solve complex business challenges and drive measurable growth. We move quickly, challenge convention, and believe the best ideas come from curious people who are empowered to experiment. If you're looking to do career-defining work alongside smart, ambitious teammates in an environment that's shaping the future of media, we'd love to meet you. ROLE OVERVIEW We are seeking an experienced Retail Media Search Manager to lead strategy, execution, and team development across retail media platforms. The ideal candidate brings deep expertise in Walmart Connect, Target Roundel, and Amazon Ads — combined with the ability to lead a small team, own senior client relationships, and build the scalable playbooks that elevate how we work. A Skai Certification is required. CORE RESPONSIBILITIES Team Leadership & Development Lead and mentor a team of 1–3 Retail Media Search Associates, providing day-to-day direction, performance feedback, and career development support. Set quality standards and review processes to ensure consistent, accurate campaign execution across all team accounts. Build onboarding materials, training guides, and optimization playbooks to scale team capabilities and reduce reliance on institutional knowledge. Identify skill gaps on the team and partner with leadership to address them through coaching, training, or resource development. Strategic Planning & Client Ownership Develop r
From $720K/yr
ROLE: RETAIL SEARCH BUYER SPECIALIST TEAM: MEDIA LOCATION: TORONTO (HYBRID ONSITE) COMPANY OVERVIEW At Salt Media , we're on a mission to earn the world's attention. As the media division of Salt XC, we're building a different kind of agency where media, commerce, creative, data and technology work as a single connected team. Our people combine strategic thinking with AI-powered tools, automation and advanced analytics to help some of North America's most recognized brands solve complex business challenges and drive measurable growth. We move quickly, challenge convention, and believe the best ideas come from curious people who are empowered to experiment. If you're looking to do career-defining work alongside smart, ambitious teammates in an environment that's shaping the future of media, we'd love to meet you. ROLE OVERVIEW We are seeking an experienced Retail Search Buyer Specialist to manage and optimize paid search campaigns across retail media platforms. The ideal candidate will have hands-on expertise in Walmart Connect, Roundel Media Studio and Amazon Ads sponsored product and sponsored brand advertising, along with deep knowledge of keyword strategy, campaign pacing, and reporting. A Skai Certification is required, demonstrating advanced skills in retail search management and optimization. RESPONSIBILITIES Strategic Planning & Activation Develop retail media and growth plans tied to client goals and category trends. Build media and operational tactics based on those plans, launching campaigns across Walmart, Target, and Amazon. Campaign Execution & Optimization Lead hands-on campaign management: daily budget pacing, keyword bidding, placement adjustments, and bid-strategy refinements. Use consumer behaviour data and top-of-search tactics to refine paid search strategies. Reporting & Insights Delivery Deliver regular performance reporting—monthly, quarterly, and mid-year—highlighting key business trends and category influences.
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Data Scientist Overview: Services within Mastercard is responsible for acquiring, engaging, and retaining customers by managing fraud and risk, enhancing cybersecurity, and improving the digital payments experience. We provide value-added services and leverage expertise, data-driven insights, and execution. The Cyber and Intelligence Solutions team is responsible for innovation, development and management of our products and services to address evolving risk and security needs for all of Mastercard’s customers across the world including Banks, Merchants, Fintechs and of course consumers. The Lead Data Scientist will be a key contributor in helping Mastercard develop and deliver actionable insights and products to help issuers, acquirers and merchants reduce fraud. What will you do? -You will be a key player in helping Mastercard extract value from existing data sources in order to better understand, detect and prevent fraud. -Use your data science expertise and skills to analyze worldwide fraud data to gain insights regarding fraud. -Apply modeling techniques to identify and understand fraud to protect the MasterCard payment network. -Build and manage new fraud related products and services that will provide value to our customers and increase revenue. All about you: <br
Upwork Inc.’s (Nasdaq: UPWK) family of companies connects businesses with global, AI-enabled talent across every contingent work type including freelance, fractional, and payrolled. This portfolio includes the Upwork Marketplace, which connects businesses with on-demand access to highly skilled talent across the globe, and Lifted, which provides a purpose-built solution for enterprise organizations to source, contract, manage, and pay talent across the full spectrum of contingent work. From Fortune 100 enterprises to entrepreneurs, businesses rely on Upwork Inc. to find and hire expert talent, leverage AI-powered work solutions, and drive business transformation. With access to professionals spanning more than 10,000 skills across AI & machine learning, software development, sales & marketing, customer support, finance & accounting, and more, the Upwork family of companies enables businesses of all sizes to scale, innovate, and transform their workforces for the age of AI and beyond. Since its founding, Upwork Inc. has facilitated more than $30 billion in total transactions and services as it fulfills its purpose to create opportunity in every era of work. Learn more about the Upwork Marketplace at Upwork.com and follow us on LinkedIn, Facebook, Instagram, TikTok, and X; and learn more about Lifted at Go-Lifted and follow on LinkedIn. Lifecycle Marketing is a horizontal team that shapes how we engage clients and talent across the full journey, and this role sits in our demand-side acquisition lane. We’re hiring a Lifecycle Marketing Lead, Growth & Acquisition to own high-impact lifecycle programs that help close the new-client acquisition gap through smarter demand capture and stronger engagement with SMB audiences. You’ll lead key initiatives across outbound prospecting and always-on content, translate performance signals into clear recommendations, and help shape how lifecycle marketing contributes to Upwork’s 2026 priorities. This is a senior indi
Lead Software Engineer (SDET) — Toronto, Canada. Apply via Workday.
From C$102K/yr
At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Data is at the heart of Lyft’s products and decision-making. You will leverage data and rigorous, analytical thinking to shape our products and make business decisions. This will involve performing rigorous product deep dives, identifying opportunities for product enhancements, and measuring the impact of product changes. The Airports team, within the Driver organization, focuses on the airport marketplace and the unique products designed for this use case. Airports are one of the most important, impactful, and complex parts of Lyft’s Rideshare business, as they are a key part of both the rider and driver Lyft experience and have unique dynamics. As an Analytics Lead on the Airport team, you will collaborate with our team of engineers, product managers, and designers to conduct thorough data deep dives on airport performance, challenge our current strategy, and recommend enhancements to facilitate market growth. The ideal candidate can apply strong business acumen to propose product and marketplace changes, and is comfortable working with a highly cross functional team. In this role, you will help us tackle problems such as: How should we determine pricing and earnings for airport rides? Who are our current airport drivers and what segment can we focus on to grow our supply? How does this strategy interact with driver bonuses? Which airports are underperforming and which key metrics can we use to identify and classify airport performance? What targets should we set for these key metrics and how do we efficiently monitor these metrics? What is driving high cancellation rates today and which types of riders/drivers are cancelling? What product changes can we implement to reduce cancellation rates? How are riders and drivers using different ride modes at airports, and how do we design
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